CN112448734A - Radio frequency module, terminal equipment and signal transmitting method - Google Patents
Radio frequency module, terminal equipment and signal transmitting method Download PDFInfo
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- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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Abstract
The embodiment of the application discloses a radio frequency module, terminal equipment and a signal transmitting method. The radio frequency module comprises an antenna module, a switch module and a power amplifier, wherein the antenna module comprises a first antenna unit and a second antenna unit; the first antenna unit is used for supporting a first frequency band working at a new air interface NR; the second antenna unit is used for supporting a first frequency band of NR and a second frequency band of long term evolution LTE, and the first frequency band and the second frequency band are frequency bands which do not work simultaneously; the switch module is used for switching and conducting the power amplifier and the paths among different antennas of the first antenna unit and the second antenna unit; the power amplifier is used for amplifying the radio frequency signal of the first frequency band to obtain a first amplified signal, and sending the first amplified signal to the antenna on the conducted path through the switch module. The radio frequency module, the terminal device and the signal transmitting method can reduce the complexity of the radio frequency module and reduce the cost.
Description
Technical Field
The application relates to the technical field of communication, in particular to a radio frequency module, terminal equipment and a signal transmitting method.
Background
With the rapid development of communication technologies, 5G (5th generation mobile networks, fifth generation mobile communication technologies) has gradually entered the life of internet users, and more terminal devices support accessing to 5G networks. In order to support the transmission of 5G signals, the terminal device needs to modify a conventional radio frequency module to support the transmission of 5G signals. At present, the complexity of a radio frequency module supporting 5G signal transmission on a terminal device is large.
Disclosure of Invention
The embodiment of the application discloses a radio frequency module, terminal equipment and a signal transmitting method, which can reduce the complexity of the radio frequency module and reduce the cost.
The embodiment of the application discloses a radio frequency module, which comprises an antenna module, a switch module and a power amplifier, wherein the switch module is respectively connected with the power amplifier and the antenna module, the antenna module comprises a first antenna unit and a second antenna unit, wherein,
the first antenna unit is used for supporting a first frequency band working at a new air interface NR;
the second antenna unit is configured to support a first frequency band of the NR and a second frequency band of long term evolution LTE, where the first frequency band and the second frequency band are frequency bands that do not work at the same time;
the switch module is used for switching and conducting paths between the power amplifier and different antennas of the first antenna unit and the second antenna unit;
the power amplifier is used for amplifying the radio frequency signal of the first frequency band to obtain a first amplified signal, and sending the first amplified signal to an antenna on a conducted path through the switch module.
The embodiment of the application discloses terminal equipment, which comprises the radio frequency module.
The embodiment of the application discloses a signal transmitting method, which is applied to terminal equipment, wherein the terminal equipment comprises a power amplifier, a first antenna unit and a second antenna unit, and the method comprises the following steps:
amplifying the radio frequency signal of the first frequency band of NR by the power amplifier to obtain a first amplified signal;
and transmitting the first amplified signal through an antenna which is conducted with the power amplifier in the first antenna unit and the second antenna unit, wherein the first antenna unit supports to work in the first frequency band of the NR, and the second antenna unit supports to work in the first frequency band of the NR and the second frequency band of the LTE.
The embodiment of the application discloses a radio frequency module, a terminal device and a signal transmitting method, the radio frequency module comprises an antenna module, a switch module and a power amplifier, the switch module is respectively connected with the power amplifier and the antenna module, the antenna module comprises a first antenna unit supporting to work in a first frequency band of NR and a second antenna unit supporting to work in the first frequency band of NR and a second frequency band of LTE, a passage between the power amplifier and antennas in the first antenna unit and the second antenna unit can be switched and conducted through the switch module, the power amplifier amplifies a radio frequency signal in the first frequency band, after the first amplified signal is obtained, the first amplified signal is transmitted to the antenna on the conducted passage through the switch module, so that the signal belonging to the first frequency band of NR can be transmitted through different antennas, and because the first frequency band of NR and the second frequency band of LTE are frequency bands which do not work simultaneously, the problem of signal interference can not occur, so that the antenna of the second antenna unit can be used together to transmit the signal belonging to the first frequency band of NR, the number of the antennas for setting the first frequency band of NR can be reduced, the complexity of a radio frequency module can be reduced, the space of terminal equipment is saved, and the cost is reduced. And the number of the arranged antennas is reduced, and the workload of debugging the antennas can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1A is a diagram illustrating an exemplary implementation of a signal transmission method;
FIG. 1B is a block diagram of an embodiment of an RF module;
FIG. 2 is a block diagram of an RF module in another embodiment;
FIG. 3A is a block diagram of an RF module in another embodiment;
FIG. 3B is a block diagram of an RF module in another embodiment;
FIG. 4A is a block diagram of an RF module in another embodiment;
FIG. 4B is a block diagram of an RF module in another embodiment;
FIG. 5 is a block diagram of an RF module in another embodiment;
FIG. 6 is a block diagram showing the structure of a terminal device in one embodiment;
FIG. 7 is a flow chart of a method of signal transmission in one embodiment;
fig. 8 is a block diagram of a terminal device in another embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is to be noted that the terms "comprises" and "comprising" and any variations thereof in the examples and figures of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first antenna element may be referred to as a second antenna element, and similarly, a second antenna element may be referred to as a first antenna element, without departing from the scope of the present application. The first antenna element and the second antenna element are both antenna elements, but they are not the same antenna element.
Fig. 1A is a diagram illustrating an application scenario of a signal transmission method according to an embodiment. As shown in fig. 1A, a communication connection is established between the terminal device 110 and the network device 120, alternatively, the terminal device 110 and the network device 120 may establish a communication connection through a fourth generation, a fifth generation, and other communication technologies, and a communication connection manner of the terminal device and the network device is not limited in this embodiment of the present application.
In some embodiments, terminal device 110 may be referred to as a User Equipment (UE). The terminal device may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like, and may also be a mobile phone, a Mobile Station (MS), a terminal device (mobile terminal), a notebook computer, or the like, and the terminal device 110 may communicate with one or more core networks through a Radio Access Network (RAN). For example, terminal equipment 110 may be a mobile telephone (or "cellular" telephone) or a computer having terminal equipment, etc., and terminal equipment 110 may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with a radio access network, for example. The terminal device 110 may also be a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a network evolved in the future, and the like, and the implementation of the present application is not limited.
In some embodiments, the network device 120 may be an evolved Node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), a new generation NodeB (g), or the like in a Long Term Evolution (LTE) system, an NR communication system, or a licensed assisted access long-term evolution (LAA-LTE) system. The network device 120 may also be other types of network devices in a future evolution network, and the implementation of the present application is not limited.
In the related art, 5G has two major deployment schemes, namely, NSA (non-stand-alone networking) and SA (stand-alone networking), and both the two major deployment schemes involve the addition of a key scheme in terms of increasing the communication rate, for example, the 1T4R scheme under NSA and the 2T4R scheme under SA and the 1T4R scheme, etc. are both used to increase the communication rate, where 1T4R refers to transmitting Sounding Reference Signals (SRS) by round-robin on 4 antennas, 1 antenna is selected to transmit SRS signals every time, and 2T4R refers to transmitting signals by round-robin on 4 antennas, and 2 antennas are selected to transmit SRS signals every time.
Taking 1T4R as an example, the design architecture of the current rf module for supporting 1T4R of 5G signals is generally shown in fig. 1B: the rf module 130 may include a first Power Amplifier (PA) 132 and a second power amplifier 134, wherein the first power amplifier 132 supports a frequency band of an NR network (e.g., N41 frequency band, etc.), and the second power amplifier 134 supports a frequency band of an LTE network (e.g., B41 frequency band, etc.). The rf module 130 may implement the 1T4R scheme for 5G signals through a 4T switch, and the first power amplifier 132 may implement alternate transmission of rf signals in the NR network band through 4 antennas through a 4T switch (e.g., a single-pole four-throw switch). In the radio frequency module 130 in the related art, a separate external power amplifier (i.e., the first power amplifier 132) is required to support the frequency band of the NR network, and 4 antennas are required to support the frequency band of the NR network, and 2 antennas are required to support the frequency band of the LTE network, so that the number of the antennas to be arranged is large, the cost is high, the complexity of the radio frequency module is high, and the workload of antenna debugging is increased due to the excessive number of the antennas.
The embodiment of the application provides a radio frequency module, a terminal device and a signal transmitting method, which can reduce the number of antennas of a first frequency band for setting NR, reduce the complexity of the radio frequency module, save the space of the terminal device and reduce the cost. And the number of the arranged antennas is reduced, and the workload of debugging the antennas can be reduced.
As shown in fig. 2, in an embodiment, a radio frequency module 200 is provided, the radio frequency module 200 includes a power amplifier 210, a switch module 220 and an antenna module 230, and the switch module 220 can be connected to the power amplifier 210 and the antenna module 230, respectively. The antenna module 230 may include a first antenna unit 232 and a second antenna unit 234, and the switch module 220 may be connected to the first antenna unit 232 and the second antenna unit 234, respectively.
A first antenna unit 232 is configured to support a first frequency band operating at NR.
And a second antenna unit 234 for supporting the first frequency band operating at NR and the second frequency band of LTE.
The first frequency band of NR and the second frequency band of LTE may be frequency bands that do not operate simultaneously. In the NSA network mode, in order to improve the data transmission rate and ensure the stability of signal transmission, a multi-connection technology such as endec (E-UTRAN, new radio dual connectivity) may be used, where endec is a 4G and 5G dual connectivity, and the terminal device is connected to the 4G base station and the 5G base station at the same time and supports the transmission of 4G signals and 5G signals. In the ENDC mode, different combinations of frequency bands may be employed to support transmission of signals belonging to multiple (at least two) different frequency bands. The first frequency band of NR and the second frequency band of LTE may not belong to a frequency band combination in the ENDC mode, so that the radio frequency module 200 may not perform signal transmission of the first frequency band and the second frequency band at the same time, and the first frequency band of NR and the second frequency band of LTE may not generate a problem of signal interference. Alternatively, the first band of NR may include N41 band (frequencies 2515 + 2675MHz (megahertz)), and the like, and the second band of LTE may include B41 band (frequencies 2575 + 2635MHz), and the like, but is not limited thereto.
As an embodiment, the first antenna unit 232 and the second antenna unit 234 may include 4 antennas to implement functions of 1T4R or 2T4R in the first frequency band of NR, wherein in the 1T4R signal transmission scheme, signals belonging to the first frequency band of NR may be transmitted to the network device by turns through one antenna of the 4 antennas at a time, and in the 2T4R signal transmission scheme, signals belonging to the first frequency band of NR may be transmitted to the network device by turns through two antennas of the 4 antennas at a time.
It should be noted that, the number of antennas specifically included in the first antenna unit 232 and the second antenna unit 234 may not be limited in the embodiment of the present application, for example, the first antenna unit 232 may include 2 antennas, the second antenna unit 234 may include 2 antennas, or the first antenna unit 232 may include 3 antennas, the second antenna unit 234 may include 1 antenna, and the like. The number of antennas and the total number of antennas specifically included in the first antenna unit 232 and the second antenna unit 234 may be designed according to actual requirements, and only a scheme of implementing signal transmission in the first frequency band of the NR network by using an antenna originally supporting the second frequency band of the LTE network in the radio frequency module needs to be satisfied, and at least a part of antennas are shared by the two frequency bands, that is, the number of antennas in the first frequency band of the NR network is reduced.
The switch module 220 is used for switching and conducting paths between the power amplifier 210 and different antennas of the first antenna unit 232 and the second antenna unit 234.
In some embodiments, in the NR 1T4R signaling scheme, the switch module 220 may selectively turn on one path between the power amplifier 210 and one of the first antenna element 232 and the second antenna element 234 at a time. In the NR 2T4R signaling scheme, the switch module 220 may selectively turn on two paths between the power amplifier 210 and two antennas of the first antenna unit 232 and the second antenna unit 234 at a time. After the path between the power amplifier 210 and the antenna is turned on, the power amplifier 210 may transmit a signal belonging to the first frequency band through the antenna on the turned-on path.
Further, the switch module 220 is further configured to turn on a path between the power amplifier 210 and at least one of the first antenna unit 232 and the second antenna unit 234 in turn according to a turn mechanism, so as to transmit the first amplified signal through a plurality of antennas of the first antenna unit 232 and the second antenna unit 234 in turn.
The switch module 220 may switch according to a predetermined rotation mechanism, and optionally, the rotation mechanism may include alternately switching on the paths between the power amplifier 210 and different antennas of the first antenna unit 232 and the second antenna unit 234 according to a certain time interval. The rotation mechanism may also include alternately switching on the paths between the power amplifier 210 and different antennas of the first antenna unit 232 and the second antenna unit 234 according to a certain sequence, for example, the first antenna unit 232 includes a first antenna and a second antenna, and the second antenna unit 234 includes a third antenna and a fourth antenna, and in the 1T4R mode, the paths between one antenna and the power amplifier 210 may be alternately switched on sequentially according to the sequence of the first antenna, the second antenna, the third antenna and the fourth antenna. The path between the power amplifier 210 and at least one of the first antenna element 232 and the second antenna element 234 may also be randomly turned on at a time.
The power amplifier 210 is configured to amplify the radio frequency signal in the first frequency band to obtain a first amplified signal, and send the first amplified signal to an antenna on a conducting path through the switch module 220, so as to transmit the first amplified signal through different antennas in turn.
The power amplifier 210 may amplify the radio frequency signal of the first frequency band, and the first amplified signal obtains enough power current, so that the first amplified signal can be converted into electromagnetic waves through the antenna to be radiated. In some embodiments, the power amplifier 210 may support only the first frequency band of NR, such as a power amplifier supporting only the N41 frequency band, that is, the first frequency band of NR and the second frequency band of LTE may be respectively transmitted through different power amplifiers.
In some embodiments, since the first band of NR and the second band of LTE do not operate simultaneously, the power amplifier 210 may also support the first band of NR and the second band of LTE simultaneously, such as power amplifiers supporting the N41 band and the B41 band, and the first band of NR and the second band of LTE may be transmitted through the same power amplifier. And a power amplifier supporting the NR first frequency band does not need to be separately externally hung, so that the complexity of the radio frequency module is further reduced, and the cost is also reduced.
Optionally, the power amplifier 210 supports a first frequency band of NR and a second frequency band of LTE, and in the first network mode, the power amplifier 210 may output a signal belonging to the first frequency band of NR, and alternately transmit the signal belonging to the first frequency band of NR among the plurality of antennas through the switch module. The first network mode may refer to a network mode including an NR network, for example, the first network mode may include at least one of a 5G NSA network mode, an SA network mode, and the like. The switch module 220 is further configured to turn on the paths between the power amplifier 210 and the different antennas of the first antenna unit 232 and the second antenna unit 234 in turn according to a turn-by-turn mechanism in the first network mode. The power amplifier 210 is further configured to amplify the radio frequency signal in the first frequency band in the first network mode to obtain a first amplified signal, and send the first amplified signal to an antenna on a conducting path through the switch module 220. The power amplifier 210 may be alternately electrically connected to different antennas of the first antenna unit 232 and the second antenna unit 234 through the switch module 220, so as to implement alternate schemes such as 1T4R or 2T4R for the signal of the first frequency band of NR.
In some embodiments, in the second network mode, the power amplifier 210 may output a signal belonging to the second frequency band of LTE and transmit the signal belonging to the second frequency band of LTE through the antenna of the second antenna unit 234. The switch module 220 is further configured to conduct a path between the power amplifier 210 and the second antenna unit 234 in the second network mode. The power amplifier 210 is further configured to amplify the radio frequency signal in the second frequency band in the second network mode to obtain a second amplified signal, and send the second amplified signal to the second antenna unit 234 through the switch module 220, so as to transmit the second amplified signal through the antenna of the second antenna unit 234. Alternatively, the second network mode may include an LTE network mode or the like.
Alternatively, if the second antenna unit 234 only includes 1 antenna, the switch module 220 may turn on a path between the power amplifier 210 and the antenna of the second antenna unit 234, and the power amplifier 210 may transmit a signal belonging to the second frequency band of LTE through the antenna of the second antenna unit 234.
If the second antenna unit 234 includes multiple antennas (two or more antennas), the switch module 220 can selectively turn on a path between the power amplifier 210 and one antenna of the second antenna unit 234. Further, a path between the power amplifier 210 and the antenna of the second antenna unit 234 may be selectively turned on according to a signal transmission scheme of the LTE network employed. For example, if the scheme 1T1R is adopted, the switch module 220 only selectively turns on the path between the power amplifier 210 and one of the antennas in the second antenna unit 234, and transmits and receives signals through the selected one of the antennas, and if the scheme 1T2R is adopted, the switch module 220 may alternately turn on the path between one of the antennas in the second antenna unit 234 and the power amplifier 210. The power amplifier 210 may transmit the second amplified signal through the antenna on the turned-on path, so as to implement the adopted signal transmission scheme of the LTE network. The power amplifier 210 can output signals of different frequency bands in different network modes, and simultaneously support the first frequency band of NR and the second frequency band of LTE, without separately externally connecting a power amplifier supporting the first frequency band of NR, thereby further reducing the complexity of the radio frequency module and reducing the cost.
In the embodiment of the present application, the rf module includes an antenna module, a switch module and a power amplifier, the switch module is connected to the power amplifier and the antenna module, the antenna module includes a first antenna unit supporting a first frequency band of NR, and a second antenna unit supporting a first frequency band of NR and a second frequency band of LTE, a path between the power amplifier and different antennas of the first antenna unit and the second antenna unit can be switched on by the switch module in turn, the power amplifier amplifies the rf signal of the first frequency band, after the first amplified signal is obtained, the first amplified signal is transmitted to the antenna on the path through the switch module, so that the signal belonging to the first frequency band of NR can be transmitted by different antennas in turn, and since the first frequency band of NR and the second frequency band of LTE are frequency bands that do not work at the same time, the problem of signal interference does not occur, therefore, the antenna of the second antenna unit can be used together to transmit signals, the number of the antennas of the first frequency band for setting NR can be reduced, the complexity of the radio frequency module can be reduced, the space of the terminal equipment can be saved, and the cost can be reduced. And the number of the arranged antennas is reduced, and the workload of debugging the antennas can be reduced.
As shown in fig. 3A, in one embodiment, the switch module 220 may include a first switch unit 222, and an input terminal of the first switch unit 222 may be connected to the power amplifier 210. Alternatively, the first switching unit 222 may be disposed outside the power amplifier 210 independently, or may be disposed inside the power amplifier 210, and the specific disposition is not limited in the embodiment of the present application.
The power amplifier 210 is further configured to send a control signal to the first switching unit 222 to control the conducting state of the first switching unit.
A first switching unit for turning on a path between the power amplifier 210 and the first antenna unit 232 when in a first on state according to the control signal, and for turning on a path between the power amplifier 210 and the second antenna unit 234 when in a second on state according to the control signal.
In some embodiments, a control unit (not shown) may be included in the power amplifier 210, and the control unit may generate a control signal and send the control signal to the first switching unit 222, by which the conductive state of the first switching unit may be controlled. Alternatively, the control signal may include a simpler control command such as a digital command, for example, if the control signal is "0", the first switch unit may be controlled to switch to the first conducting state, and if the control signal is "1", the first switch unit may be controlled to switch to the second conducting state. The first switch unit 222 can be controlled more easily, and the control efficiency and accuracy can be improved. Alternatively, the first switch unit may be a single-pole double-throw switch or the like, and may also include two independent switches, wherein one switch is used to control the on/off of the path between the power amplifier 210 and the first antenna unit 232, and the other switch is used to control the on/off of the path between the power amplifier 210 and the second antenna unit 234.
The first switch unit 222 is further configured to alternately switch the first conducting state and the second conducting state according to the control signal. Alternatively, the control unit of the power amplifier 210 may send the first control signal and the second control signal to the first switch unit 222 at intervals of the first time period, and the first switch unit 222 may switch to the first conducting state according to the first control signal and may switch to the second conducting state according to the second control signal, so as to switch on the paths between the power amplifier 210 and the first antenna unit 232 and the second antenna unit 234 in turn.
Further, in the first network mode, the control unit of the power amplifier 210 may send the first control signal and the second control signal to the first switch unit 222 at intervals of the first time period, so as to control the first switch unit 222 to switch the first conducting state and the second conducting state in turn. In the second network mode, the control unit of the power amplifier 210 may directly send the second control signal to the first switching unit 222 to control the first switching unit 222 to switch to the second conducting state. Optionally, the first switch unit 222 may also be set in the second conduction state by default, and when the first network mode is performed, the first conduction state and the second conduction state are alternately switched according to the control signal sent by the power amplifier 210, and if the first switch unit 222 does not acquire the control signal sent by the power amplifier 210 within a certain time period, the second conduction state may be restored to the second conduction state set by default.
In some embodiments, as shown in fig. 3A, the switch module 220 further includes a second switch unit 224 and a third switch unit 226, wherein the second switch unit 224 may be connected to the first output terminal of the first switch unit 222 and the first antenna unit 232, respectively, and the third switch unit 226 may be connected to the second output terminal of the first switch unit 222 and the second antenna unit 234, respectively.
The second switch unit 224 may be used to control the conduction of the path between the power amplifier 210 and each of the antennas in the first antenna unit 232. When the first switch unit 222 is in the first conducting state, the second switch unit may alternately switch on the paths between the first switch unit 222 and the antennas in the first antenna unit 232, so that the power amplifier 210 alternately connects the antennas in the first antenna unit 232. The third switching unit 226 may be used to control the path between the power amplifier 210 and each antenna in the second antenna unit 234 to be turned on. When the first switch unit 222 is in the second conducting state, the second switch unit may alternately switch on the paths between the first switch unit 222 and the antennas in the second antenna unit 234, so that the power amplifier 210 alternately connects the antennas in the second antenna unit 234.
In some embodiments, as shown in fig. 3B, the first antenna unit 232 includes a first antenna 302 and a second antenna 304, and the second antenna unit 234 includes a third antenna 306 and a fourth antenna 308. The second switch unit 224 may be connected to the first antenna 302 and the second antenna 304, and the third switch unit 226 may be connected to the third antenna 306 and the fourth antenna 308.
The second switch unit 224 is further configured to switch on the first path and the second path respectively when the first switch unit 222 is in the first on state, and switch between the first path and the second path in turn. The first path is a path between the power amplifier 210 and the first antenna 302, and the second path is a path between the power amplifier 210 and the second antenna 304. The third switching unit 226 is further configured to switch on the third path and the fourth path respectively when the first switching unit 222 is in the second on state, and switch between the third path and the fourth path in turn. The third path is a path between the power amplifier 210 and the third antenna 306, and the fourth path is a path between the power amplifier 210 and the fourth antenna 308. The power amplifier 210 may alternately transmit the first amplified signal belonging to the first frequency band of NR through the antenna on the turned-on path, implementing the 1T4R signal transmission scheme.
Alternatively, the second switch unit 224 may be a single-pole double-throw switch or the like, and may also include two independent switches for controlling the on/off of the first path and the second path, respectively. The third switching unit 226 may be a single-pole double-throw switch or the like, or may include two independent switches for controlling on/off of the third path and the fourth path, respectively.
In some embodiments, the second switching unit 224 and the third switching unit 226 may both be controlled by the power amplifier 210, and the power amplifier 210 may send control signals to the second switching unit 224 and the third switching unit 226 to control the conduction states of the second switching unit 224 and the third switching unit 226. In other embodiments, the first switching unit 222, the second switching unit 224 and the third switching unit 226 may also be controlled by a modem (modem) chip or the like.
When receiving control signals containing different logic commands, the first switch unit 222, the second switch unit 224, and the third switch unit 226 may respectively turn on the paths between the power amplifier 210 and different antennas, so as to transmit signals belonging to the first channel of NR through different antennas. For example, the correspondence between the logic instructions and the transmitting antennas can be as shown in table 1:
TABLE 1
Alternatively, in the first network mode, the first switch unit, the second switch unit, and the third switch unit may be controlled in turn according to the switch logic instruction shown in table 1, so that the power amplifier 210, the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308 are turned on in turn, and one antenna is selected at a time to transmit the signal belonging to the first frequency band of the NR signal.
Alternatively, in the second network mode, the first switching unit and the third switching unit may be controlled according to only the 3 rd switching logic instruction and the 4 th switching logic instruction shown in table 1, so that the power amplifier 210 transmits signals belonging to the second frequency band of LTE through the third antenna 306 or the fourth antenna 308.
It should be noted that table 1 only shows one example of the correspondence between the switch logic command and the transmitting antenna, and other correspondences are also possible, and the embodiment of the present application is not limited.
In this embodiment, the switch module may include a first switch unit, a second switch unit, and a third switch unit, and the first switch unit, the second switch unit, and the third switch unit may control the alternate conduction of the paths between the power amplifier and the different antennas, and transmit the signal of the first channel belonging to the NR signal between the four antennas in turn.
In one embodiment, as shown in fig. 4A, the switch module 210 may include a single-pole four-throw switch 402, the single-pole four-throw switch 402 may be connected to the power amplifier 210, and the single-pole four-throw switch 402 may also be connected to the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308.
The single-pole four-throw switch 402 is used to switch on a path between the power amplifier 210 and the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308. Alternatively, the spdt 402 may alternately turn on a path between the power amplifier 210 and the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308 according to an alternate mechanism, one antenna may be selected from the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308 at a time, and be turned on with the power amplifier 210, and the power amplifier 210 may send the first amplified signal to the turned on antenna through the spdt 402, thereby implementing the round-robin scheme of 1T 4R. The round-trip scheme of 1T4R can be realized by one switch, so that the number of components in the radio frequency module 200 can be reduced, the complexity of the radio frequency module 200 can be saved, and the space can be saved.
In one embodiment, as shown in fig. 4B, the switch module 210 may include a double pole, four throw switch 404, the double pole, four throw switch 404 may be connected to the power amplifier 210, and the double pole, four throw switch 404 may also be connected to the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308.
The double pole, four throw switch 404 is used to switch on two paths between the power amplifier 210 and the first antenna 302, the second antenna 304, the third antenna 306 and the fourth antenna 308. Alternatively, the double-pole four-throw switch 404 may alternately turn on two paths between the power amplifier 210 and the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308 according to a rotation mechanism, two antennas may be selected from the first antenna 302, the second antenna 304, the third antenna 306, and the fourth antenna 308 at a time, and are turned on with the power amplifier 210, and the power amplifier 210 may send the first amplified signal to the turned on antennas through the double-pole four-throw switch 404, thereby implementing the round-robin scheme of 2T 4R. The round-trip scheme of 2T4R can be realized by one switch, so that the number of components in the rf module 200 can be reduced, the complexity of the rf module 200 can be reduced, and the space can be saved.
In some embodiments, the switch module 210 may also include four single-throw switches, the four single-throw switches are respectively connected to the first antenna 302, the second antenna 304, the third antenna 306 and the fourth antenna 308 in a one-to-one correspondence, and the four single-throw switches are simultaneously connected to the power amplifier 210. In the signaling scheme of 1T4R, only one of the single-throw switches may be controlled to be closed at a time to turn on a path between the power amplifier 210 and an antenna connected to the closed single-throw switch and transmit a first amplified signal through the turned-on antenna, and the remaining three single-throw switches are turned off. In the signaling scheme of 2T4R, only two of the single-throw switches may be controlled to be closed at a time to turn on a path between the power amplifier 210 and an antenna connected to the closed single-throw switch and transmit the first amplified signal through the turned-on two antennas, with the remaining two single-throw switches being in an open state. Through four single-throw switches, signal transmission schemes such as 1T4R or 2T4R can be selected according to requirements, different signal transmission scenes are met, and the applicability of the radio frequency module 200 is improved.
The single-pole four-throw switch 402, the double-pole four-throw switch 404, the four single-throw switches, and the like may be controlled to be turned on/off by the power amplifier 210, or may be controlled by a modem chip or the like connected thereto.
In the embodiment of the application, the switch module can control the passage between the power amplifier and different antennas to be conducted in turn, the signals of the first channel belonging to the NR signals are transmitted in turn among the four antennas, the alternate switching mechanism is simple, the accuracy of the alternate transmission mechanism can be improved, and the signal transmission efficiency is improved. And the first frequency band of NR and the second frequency band of LTE share the antenna, so that the number of the arranged antennas is reduced, the complexity of a radio frequency module can be reduced, the space of terminal equipment is saved, and the cost is reduced.
As shown in fig. 5, in one embodiment, the rf module 200 includes a rf transceiver 240 in addition to the power amplifier 210, the switch module 220 and the antenna module 230, and the rf transceiver 240 may be connected to the power amplifier 210.
The rf transceiver 240 is configured to receive an input signal, process the input signal to obtain a radio frequency signal in a first frequency band, and send the radio frequency signal in the first frequency band to the power amplifier 210. Further, in the first network mode, the rf transceiver 240 may process the input signal to obtain an rf signal belonging to the first frequency band of NR. In the second network mode, the rf transceiver 240 may process the input signal to obtain an rf signal belonging to a second frequency band of LTE, and send the rf signal of the second frequency band to the power amplifier 210.
In some embodiments, if two power amplifiers are included in the rf module 200, one of the power amplifiers supports the first frequency band of NR, and the other of the power amplifiers supports the second frequency band of LTE. After processing the input signal to obtain a radio frequency signal, the radio frequency transceiver 240 may determine whether the radio frequency signal belongs to a first frequency band or a second frequency band, if the radio frequency signal belongs to the first frequency band of NR, the radio frequency transceiver 240 may send the obtained radio frequency signal to a power amplifier supporting the first frequency band of NR, and if the radio frequency signal belongs to the second frequency band of LTE, the radio frequency transceiver 240 may send the obtained radio frequency signal to another power amplifier supporting the second frequency band of LTE.
In this application embodiment, the radio frequency transceiver sends the radio frequency signal that belongs to NR's first frequency channel to power amplifier, power amplifier amplifies the radio frequency signal of first frequency channel, obtain first amplified signal, accessible switch module sends first amplified signal to the antenna on the route that switches on, thereby can launch the signal that belongs to NR's first frequency channel at different antennas in turn, because NR's first frequency channel and LTE's second frequency channel are the frequency channel of not simultaneous working, the problem of signal interference can not take place, consequently can use the antenna transmission signal of second antenna unit jointly, can reduce the antenna quantity that sets up NR's first frequency channel, the complexity of radio frequency module can be reduced, terminal equipment's space has been saved.
As shown in fig. 6, in one embodiment, a terminal device 600 is provided that may include the rf module 200 as described in the various embodiments above.
As shown in fig. 7, in an embodiment, a signal transmission method is provided, which is applicable to the terminal device described above, and the method may include the following steps:
In one embodiment, step 720 may include: and according to a rotation mechanism, selecting at least one antenna from the first antenna unit and the second antenna unit in rotation to be conducted with the power amplifier, and transmitting the first amplified signal through the antenna conducted with the power amplifier.
In one embodiment, step 710 may comprise: in the first network mode, the radio frequency signal of the first frequency band of the NR is amplified through the power amplifier to obtain a first amplified signal.
In one embodiment, the signal transmission method further includes: amplifying the radio frequency signal of the second frequency band by the power amplifier in a second network mode to obtain a second amplified signal; the second amplified signal is transmitted through an antenna in the second antenna element.
In the embodiment of the present application, since the first frequency band of NR and the second frequency band of LTE are frequency bands that do not operate at the same time, the problem of signal interference does not occur, so that an antenna of the second antenna unit can be used together to transmit a signal belonging to the first frequency band of NR, the number of antennas in the first frequency band in which NR is set can be reduced, the complexity of a radio frequency module can be reduced, the space of a terminal device can be saved, and the cost can be reduced. And the number of the arranged antennas is reduced, and the workload of debugging the antennas can be reduced.
Fig. 8 is a block diagram of a terminal device in another embodiment. As shown in fig. 8, the terminal device may include: radio frequency module 810, memory 820, input unit 830, display unit 840, sensor 850, audio circuit 860, WiFi (Wireless Fidelity) module 870, processor 880, and power supply 890. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 8 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components.
The radio frequency module 810 may be configured to receive and transmit signals during information transmission and reception or during a call, and in particular, receive downlink information of a base station and then process the downlink information to the processor 880; in addition, the data for designing uplink is transmitted to the base station. In the embodiment of the present application, the rf module 810 may be as shown in the rf module 200 described in the embodiments, and optionally, the rf module 810 may further include, but is not limited to, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio module 810 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), long term evolution, email, Short Message Service (SMS), etc.
The memory 820 may be used to store software programs and modules, and the processor 880 executes various functional applications of the terminal device and data processing by operating the software programs and modules stored in the memory 820. The memory 820 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device, and the like. Further, the memory 820 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 830 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the input unit 830 may include a touch panel 832 and other input devices 834. The touch panel 832, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 832 (e.g., operations by a user on or near the touch panel 832 using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. Alternatively, the touch panel 832 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts it to touch point coordinates, and sends the touch point coordinates to the processor 880, and can receive and execute commands from the processor 880. In addition, the touch panel 832 may be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 830 may include other input devices 834 in addition to the touch panel 832. In particular, other input devices 834 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 840 may be used to display information input by a user or information provided to the user and various menus of the terminal device. The display unit 840 may include a display panel 842, and optionally, the display panel 842 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting diode (OLED), or the like. Further, the touch panel 832 can cover the display panel 842, and when the touch panel 832 detects a touch operation thereon or nearby, the touch operation can be transmitted to the processor 880 to determine the type of the touch event, and then the processor 880 can provide a corresponding visual output on the display panel 842 according to the type of the touch event. Although in fig. 8, the touch panel 832 and the display panel 842 are two separate components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 832 and the display panel 842 may be integrated to implement the input and output functions of the terminal device.
The terminal device may also include at least one sensor 850, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 842 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 842 and/or the backlight when the terminal device is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for recognizing the attitude of the terminal device, and related functions (such as pedometer and tapping) for vibration recognition; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device, detailed description is omitted here.
WiFi belongs to short distance wireless transmission technology, and the terminal device can help the user send and receive e-mail, browse web page and access streaming media, etc. through WiFi module 870, which provides wireless broadband internet access for the user.
The processor 880 is a control center of the terminal device, connects various parts of the entire terminal device using various interfaces and lines, and performs various functions of the terminal device and processes data by operating or executing software programs and/or modules stored in the memory 820 and calling data stored in the memory 820, thereby performing overall monitoring of the terminal device. Optionally, processor 880 may include one or more processing units; preferably, the processor 880 may integrate an application processor, which mainly handles operating systems, user interfaces, applications, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 880.
The terminal device also includes a power supply 890 (e.g., a battery) for powering the various components, which may be logically coupled to the processor 880 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. Although not shown, the terminal device may further include a camera, a bluetooth module, and the like, which are not described herein.
In one embodiment, the computer programs stored in memory 820, when executed by processor 880, cause processor 880 to implement the methods described in the embodiments above.
The embodiment of the application discloses a computer readable storage medium, which stores a computer program, wherein the computer program realizes the method described in the above embodiments when being executed by a processor.
Embodiments of the present application disclose a computer program product comprising a non-transitory computer readable storage medium storing a computer program, and the computer program, when executed by a processor, implements the method as described in the embodiments above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.
Any reference to memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.
In various embodiments of the present application, it should be understood that the size of the serial number of each process described above does not mean that the execution sequence is necessarily sequential, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The foregoing detailed description is directed to a radio frequency module, a terminal device, and a signal transmission method disclosed in the embodiments of the present application, and specific examples are applied in the detailed description to explain the principles and implementations of the present application. Meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (13)
1. A radio frequency module comprises an antenna module, a switch module and a power amplifier, wherein the switch module is respectively connected with the power amplifier and the antenna module, the antenna module comprises a first antenna unit and a second antenna unit,
the first antenna unit is used for supporting a first frequency band working at a new air interface NR;
the second antenna unit is configured to support a first frequency band of the NR and a second frequency band of long term evolution LTE, where the first frequency band and the second frequency band are frequency bands that do not work at the same time;
the switch module is used for switching and conducting a path between the power amplifier and the antennas in the first antenna unit and the second antenna unit;
the power amplifier is used for amplifying the radio frequency signal of the first frequency band to obtain a first amplified signal, and sending the first amplified signal to an antenna on a conducted path through the switch module.
2. The rf module of claim 1, wherein the switch module is further configured to turn on a path between the power amplifier and at least one of the first antenna unit and the second antenna unit in turn according to a turn mechanism, so as to transmit the first amplified signal through a plurality of antennas of the first antenna unit and the second antenna unit in turn.
3. The rf module of claim 2, wherein the switch module is further configured to turn on paths between the power amplifier and different antennas of the first antenna unit and the second antenna unit in turn according to a turn mechanism in the first network mode;
the power amplifier is configured to amplify the radio frequency signal of the first frequency band in the first network mode to obtain a first amplified signal, and send the first amplified signal to an antenna on a conducting path through the switch module.
4. The RF module of claim 3, wherein the switch module is further configured to conduct a path between the power amplifier and the second antenna unit in a second network mode;
the power amplifier is further configured to amplify the radio frequency signal in the second frequency band in the second network mode to obtain a second amplified signal, and send the second amplified signal to the second antenna unit through the switch module.
5. The RF module of claim 4, wherein the first network mode comprises at least one of a 5G non-independent Networking (NSA) network mode and an independent networking (SA) network mode, and wherein the second network mode comprises a LTE network mode.
6. The RF module of any one of claims 1 to 5, wherein the switch module comprises a first switch unit, an input terminal of the first switch unit is connected to the power amplifier;
the power amplifier is further configured to send a control signal to the first switch unit to control a conducting state of the first switch unit;
the first switch unit is configured to switch on a path between the power amplifier and the first antenna unit when being in a first on state according to the control signal, and is configured to switch on a path between the power amplifier and the second antenna unit when being in a second on state according to the control signal.
7. The RF module of claim 6, wherein the first antenna unit includes a first antenna and a second antenna, and the second antenna unit includes a third antenna and a fourth antenna; the switch module comprises a second switch unit and a third switch unit, the second switch unit is respectively connected with the first output end of the first switch unit and the first antenna and the second antenna, and the third switch unit is respectively connected with the second output end of the second switch unit and the third antenna and the fourth antenna of the second antenna unit;
the first switch unit is also used for switching the first conduction state and the second conduction state in turn according to the control signal;
the second switch unit is configured to respectively switch on a first path and a second path when the first switch unit is in the first on state, where the first path is a path between the power amplifier and the first antenna, and the second path is a path between the power amplifier and the second antenna;
the third switching unit is configured to switch and conduct a third path and a fourth path respectively when the first switching unit is in the second conducting state, where the third path is a path between the power amplifier and the third antenna, and the fourth path is a path between the power amplifier and the fourth antenna.
8. The RF module of any one of claims 1 to 3, wherein the first antenna unit includes a first antenna and a second antenna, and the second antenna unit includes a third antenna and a fourth antenna; the switch module comprises a single-pole four-throw switch, and the single-pole four-throw switch is connected with the power amplifier and is respectively connected with the first antenna, the second antenna, the third antenna and the fourth antenna;
the single-pole four-throw switch is used for switching and conducting a path between the power amplifier and the first antenna, the second antenna, the third antenna and the fourth antenna.
9. The RF module of any one of claims 1 to 3, wherein the first antenna unit includes a first antenna and a second antenna, and the second antenna unit includes a third antenna and a fourth antenna; the switch module comprises a double-pole four-throw switch, and the double-pole four-throw switch is connected with the power amplifier and is respectively connected with the first antenna, the second antenna, the third antenna and the fourth antenna;
the double-pole four-throw switch is used for switching on two paths among the power amplifier, the first antenna, the second antenna, the third antenna and the fourth antenna in turn.
10. The RF module of any one of claims 1 to 5, further comprising an RF transceiver, the RF transceiver being coupled to the power amplifier;
the radio frequency transceiver is used for receiving an input signal, processing the input signal to obtain a radio frequency signal of the first frequency band, and sending the radio frequency signal of the first frequency band to the power amplifier.
11. The RF module of any one of claims 1 to 5, wherein the first frequency band comprises an N41 frequency band, and the second frequency band comprises a B41 frequency band.
12. A terminal device, characterized in that it comprises a radio frequency module according to any one of claims 1 to 11.
13. A signal transmission method, applied to a terminal device, wherein the terminal device includes a power amplifier, a first antenna unit and a second antenna unit, the method comprising:
amplifying the radio frequency signal of the first frequency band of NR by the power amplifier to obtain a first amplified signal;
and transmitting the first amplified signal through an antenna which is conducted with the power amplifier in the first antenna unit and the second antenna unit, wherein the first antenna unit supports to work in the first frequency band of the NR, and the second antenna unit supports to work in the first frequency band of the NR and the second frequency band of the LTE.
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| WO2023016204A1 (en) * | 2021-08-12 | 2023-02-16 | Oppo广东移动通信有限公司 | Amplifier module, radio frequency system and communication device |
| CN113659997A (en) * | 2021-08-16 | 2021-11-16 | 荣耀终端有限公司 | Radio frequency amplifying circuit, phase adjusting method, radio frequency amplifying method and terminal equipment |
| WO2023020510A1 (en) * | 2021-08-17 | 2023-02-23 | 维沃移动通信有限公司 | Antenna module and electronic apparatus |
| CN113950167A (en) * | 2021-10-14 | 2022-01-18 | 航天新通科技有限公司 | High-power 5G private network terminal |
| CN113950167B (en) * | 2021-10-14 | 2024-02-13 | 航天新通科技有限公司 | High-power 5G private network terminal |
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Application publication date: 20210305 |